Scheduling Repeat Ethylene Unit Outages
Lead Scheduler on numerous Gulf Coast ethylene unit outages, each running 35 to 45 days with $30M to $80M in outage work.
Discuss Your ProjectThis example reflects professional experience led by Pathline’s founder. Client identities and confidential project details are omitted.
The Scheduling Challenge
Ethylene units are among the most complex and valuable assets in a petrochemical complex. For a major Gulf Coast petrochemical producer, Josh served as Lead Scheduler on numerous ethylene unit outages, each typically running 35 to 45 days with $30M to $80M in outage work. Every day the unit is down affects production across the site, so the outage window has to be planned tightly and held.
The Approach
- Built detailed outage schedules around shutdown, execution and startup sequences
- Coordinated many crews and work packages competing for the same unit access
- Tracked the critical path daily against the committed return-to-service date
- Carried lessons from each outage into planning for the next one
The Management Value
Repeat outage work builds a clear picture of what actually drives an ethylene unit's schedule. That experience lets the schedule flag realistic durations, common risks and the work most likely to threaten the return-to-service date.
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Put the Schedule to Work
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